Home / 14,947.05-20,626.09-8,231.40

Finding the Fourth Proportional to 14,947.05, 20,626.09 and 8,231.40

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Solution

The fourth proportional to 14,947.05, 20,626.09 and 8,231.40 is: 11,358.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.05 : 20,626.09 = 8,231.40 : x
  2. Step 2: Convert to fraction form
    14,947.05/20,626.09 = 8,231.40/x
  3. Step 3: Cross multiply
    14,947.05x = 20,626.09 × 8,231.40
  4. Step 4: Simplify right side
    14,947.05x = 169,781,597.23
  5. Step 5: Solve for x
    x = 169,781,597.23/14,947.05
  6. Step 6: Final answer
    x = 11,358.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.